For release 6.4, there is a macro shipped with the product called STRSRCH that will search a string. This macro resides in the SAMPJCL file. Instructions may also be found in the member STRSRDOC. It can be copied to your maclib. Where is this under release 11.x?
Easytrieve Report Generator, release 11.6
Easytrieve does not deliver STRSRCH under release 11.x as it did under release 6.4.
You may copy this from release 6.4 to release 11.x.
If you don't find it in your Easytrieve 6.4 macro library CAIMAC, please check the SAMPJCL data set for this macro and its documentation in member STRSRDOC.
Please note: It was decided to no longer distribute this with Easytrieve 11.x, as it was not written and not supported by CA Technologies. It is copyrighted for a third party as can be seen on top of the macro code.